Now we are going to make a two bagger:)

You will need to twist 2 bags for this branch rock. We put the two bags together to form a base for the branch.

If you want a flat bottom on your branch place the base next to the box. The mix pulls away from the styrofoam with no problem after it is dry. We are not going to do this branch like that. I will make a new slide show later to show this method. It is great for tanks that do not have gravel because the rocks set flat.